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j2me ip show

Posted on 2006-07-18
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i am using my mobile phone to connect to internet (gprs) from my laptop. i want to write a small java application for my mobile phone that shows my ip adress when it is executed. is this possible? if yes, any ideas for the code?
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Question by:leventsatriani
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bpmurray earned 2000 total points
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If you're using MIDP 1.0 you're out of luck, but 2.0 allows some access to that side of things. The reality is that you're probably behind your provider's Cone NAT, so you don't have much control over anything. Anyway, you should expect to have to manage a dynamically -assigned IP address. Anyway, there are two places where you might be able to find this based on the app that's running. Starting from the interfaces UDPDatagramConnection or ServerSocketConnection, there are the methods getLocalAddress and getLocalPort which should give you what you need.

Watch out, though: the IP address may be reassigned, so you can't depend on this address being permanent. I wonder when the providers will learn about IPv6!
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